“Recently, a series of electronic boards were discovered that had been planted in certain equipment at Fordow nuclear site to carry out sabotage acts in the enrichment processes,” Zarean said in an interview with Khorasan daily Saturday.

He said that the swift action of the Iranian security forces thwarted the enemies’ plots to paralyze Fordow nuclear site.

Zarean said that Fordow nuclear site acts as a backup for Natanz nuclear facility and enemies are attempting to weaken this backup through methods other than military operations.

Fordow is a uranium enrichment facility deep down a mountain. According to Iranian and Western military analysts, it is immune to military operations.